Why so that they take over the superfast trains also with their dadagiri,already enough students and other General passengers have to suffer because of such people's Dadagiri in trains like Gujarat Queen, Gujarat Express, Sayajinagari, MEMU etc.. If they allow pass holders on Superfast trains they will not remain superfast.
Instead u could ask for suburban services to be introduced between Ahmedabad and Vadodara as they are two big cities and it will help people like you.
Sorry for point on MST Holders, it was my personal experience. Not pinpointing at You!
Thanks.